package service.array;

import cn.edu.zsc.rbac.domain.dto.UserDto;
import cn.edu.zsc.rbac.domain.entity.Dept;
import cn.edu.zsc.rbac.domain.entity.Role;
import cn.edu.zsc.rbac.domain.entity.User;
import cn.edu.zsc.rbac.domain.vo.Result;
import cn.edu.zsc.rbac.domain.vo.UserVo;
import service.IDeptService;
import service.IRoleService;
import service.IUserService;


/**
 * 业务层-用户
 *
 * @author 周志豪
 * @since 2025/5/11 14:13
 */
public class UserService extends BaseService<User, UserDto,UserVo>implements IUserService {

    private final IDeptService deptService;
    private final IRoleService roleService;

    private static IUserService singleton;

    private UserService(){
        deptService = DeptService.getInstance();
        roleService = RoleService.getInstance();
        data = new User[DATA_SIZE+1];
        temp = new UserVo[DATA_SIZE];
    }

    public static IUserService getInstance(){
        if(singleton == null){
            singleton = new UserService();
        }
        return singleton;
    }
    @Override
    UserVo convertToVo(User user) {
        String deptName = "";
        Dept dept = deptService.findById(user.deptId);
        if (dept != null) {
            deptName = dept.name;
        }

        String roleName = "";
        Role role = roleService.findById(user.roleId);
        if (role != null) {
            roleName = role.name;
        }

        return new UserVo(user.getId(), user.username, user.name, user.mobile, user.email, user.deptId, deptName,
                user.roleId, roleName, user.enabled);
    }
    @Override
    User createEntity(UserDto dto, int id) {
        return new User(id,dto.username, dto.name, dto.mobile, dto.email, dto.deptId, dto.roleId);
    }

    @Override
    void updateEntity(UserDto dto, User user) {
        user.name = dto.name;
        user.mobile = dto.mobile;
        user.email = dto.email;
        user.deptId = dto.deptId;
        user.roleId = dto.roleId;
    }

    @Override
    public  boolean deptInUse(int deptId){
        boolean inUse = false;
        for(User user : data){
            if(user != null && user.deptId == deptId){
                inUse = true;
                break;
            }
        }
        return inUse;
    }

    @Override
    public  boolean roleInUse(int roleId){
        boolean inUse = false;
        for(User user : data){
            if(user != null && user.roleId == roleId){
                inUse = true;
                break;
            }
        }
        return inUse;
    }

    @Override
    public  Result create(UserDto dto) {
        if (!deptService.existsById(dto.deptId)) {
            return Result.failure("创建失败，不存在指定的部门");
        }
        if (!roleService.existsById(dto.roleId)) {
            return Result.failure("创建失败，不存在指定的角色");
        }
        return super.create(dto);
    }
    @Override
    public  Result update(UserDto dto,int id){
        if (!deptService.existsById(dto.deptId)) {
            return Result.failure("创建失败，不存在指定的部门");
        }
        if (!roleService.existsById(dto.roleId)) {
            return Result.failure("创建失败，不存在指定的角色");
        }
        return super.update(dto,id);
    }

    @Override
    public  Result toggle(int id){
        if(!existsById(id)){
            return Result.failure("切换状态失败，不存在该数据");
        }
        data[id].enabled = !data[id].enabled;
        return Result.success(data[id].enabled ? "启用成功":"停用成功",null);
    }
}
